DATREND Systems ES601-US, Operating Manual

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ES601-US OPERATING MANUAL
Computer Control/Chapter 7
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Page 136
Centronics or RS232 port of ES601-US (see Section 4).
7.2 Connections
For computer control, connect the PC to the RS232 serial port of ES601-US. The RS232 connector of
ES601-US is DB9 female, which is compatible with USB-to-Serial converter cables. For connection to a
physical COM Port at the PC, use a standard DB9F-DB9M serial cable. Do not use a NULL-modem cable
for this connection. A suitable serial cable is available from Datrend Systems as Part Number 3140-010.
7.3 Communication Settings
To prepare ES601-US for computer control, from MANUAL or AUTO MODE menu select SYSTEM
SETTINGS
'
COMPUTER INTERFACE
'
RS232 MODE.
At the PC, the required COM Port or VCP settings are:
19200 baud, No parity, 8 data bits, 1 stop bit (19200,N,8,1)
Note that for computer control, the baud rate (19200) is not the same as that used for printing Test Record
reports via the ES601-US serial port.
No handshaking is required and should be disabled in the PC COM setup.
7.4 Protocol
7.4.1 General Format of Data
Commands and data are conveyed as strings of ASCII text. The carriage return character (
\r
, or 0x0D in
hexadecimal) terminates PC commands and measurement data returned by ES601-US. Upon conclusion of
the safety test sequence, the last character sent by ES601-US is form feed (
\f
, or 0x0C), which terminates
the "END" message. ES601-US also sends a form feed
\f
as the last character of a Test Report download.
Optionally, user software may detect form feed
\f
as an event marker in the ES601-US data stream.